Improvement in platform horse-powers



improvement Consisting in theplatform and rolls,

" tion of the platform on which the horse Walks.

@tutti @tithe FRANK-J. ontvnaI or HARTFoRD, vnRMoNr.

Letters Patent No. 111,326, dated January 31, 1871.

IMPROVEMENTl IN PLATFORM HORSE-POWERS.

YThe Schedule referredto in these Letters Patent and part f "che same.

I, FRANK J. CULVER, of Hartforthinthe county of Windsor and State ofVermont, have invented certain Improvements in `Platform Horse-Powers,of which the following is a specification. i

i I Nature mul'O-bject ofthe Invention.,A

The nature and' object of this invention is the co'n struction of animproved platform, horse-power, said which insure greaterdurability,strength, efciency, andreliability to the machine than theordinary kind possesses.

In the drawingy v Figure l shows a perspective view of the improvedplatform horse-powm'.v l

Figure .2 exhibits a top view of' the outer and innel'. rings ot' theangle-irons A A A, in connection witlrthe radial plank pieces B B B. y

Figure 3 represents a sectional view ofthe grooved,broad-faced.traveling roll resting on the inverted T- rail G below -audon thc ring-plate D under the platform above. v

The new features introduced by this invention arc- Fst, an outer andinner rim of angle-iron, into which are set and bolted thereto andtherein a series ot' radial pieces ot' plank forming the platform orpor- Second, a series of grooved, broad-faced traveling rolls ruiming ona circular inverted T-rail, while a` ring-plate or metallic vcirclefastened to and beneath said platform runs on said rolls. These grooved,broad-faced traveling rolls afford special and peculiar advantages tothis machine over that of others, as they allow a double bearing fromVthe platform circular plate, while there is but a single one upon therail; they will serve to make the machine pelfectly self-adjusting; willsave much friction and do away with the necessity ot' a turned track,

`such an arrangement removing the objections frequently urged' againstthe nngrooved, narrow-faced,

ordinary traveling rolls. The angle-irons vaforesaid, with the radialpieces set therein, as aforesaid, together make a complete plat- 'formot' great durability and strength, which lwill-not warp and therebydisarrange the regular and proper action-of the machine, as theangle-irons keep said combined radial pieces true aud eren in position.

I am aware that what are called platform-horsepowers have been longknown and used, and, therefore7 I do not claim such broadly; but i thatI do claim isy A thorse-power, improved by having a platform made asaforesaid, and mounted on rolls, constructed as heretofore described.

. FRANK J. CULVER.

Witnesses:

C. ROWLAND, v E. R. JENNINGs.

